Sergeant Major Roberto Alviso reports to Colonel Robert Barnhart Jr. to be relieved as the 23d Marine Regiment Inspector Instructor Sergeant Major at the Golden Gate National Cemetery on Friday, April 12, 2024. During the ceremony, Alviso relinquished his duties to Sgt. Maj. Brian Anderson. (U.S. Marine Corps Photo by Sgt. Marissa Escobedo)

Sergeant Major Brian Anderson speaks during the 23d Marine Regiment Relief and Appointment ceremony at the Golden Gate National cemetery on Friday, April 12, 2024. During the ceremony, Sgt. Maj. Roberto Alviso relinquished his duties to Anderson. (U.S. Marine Corps Photo by Sgt. Marissa Escobedo)

Sergeant Major Brian Anderson reports to Colonel Robert Barnhart Jr. to be appointed as the 23d Marine Regiment Inspector Instructor Sergeant Major at the Golden Gate National Cemetery on Friday, April 12, 2024. During the ceremony, Sgt. Maj. Roberto Alviso relinquished his duties to Sgt. Maj. Brian Anderson. (U.S. Marine Corps Photo by Sgt. Marissa Escobedo)

Sergeant Major Brian Anderson speaks during the 23d Marine Regiment Relief and Appointment ceremony at the Golden Gate National cemetery on Friday, April 12, 2024. During the ceremony, Sgt. Maj. Roberto Alviso relinquished his duties to Anderson. (U.S. Marine Corps Photo by Sgt. Marissa Escobedo)

Sergeant Major Robert Alviso speaks during the 23d Marine Regiment Relief and Appointment ceremony at the Golden Gate National cemetery on Friday, April 12, 2024. During the ceremony, Alviso relinquished his duties to Sgt. Maj. Brian Anderson. (U.S. Marine Corps Photo by Sgt. Marissa Escobedo)

U.S. Navy Hospital Corpsman Petty Officer 1st Class Jorge Velasquez, 23D Marine Regiment, 4th Marine Division, Marine Forces Reserve, preforms a “blood sweep” on patient Sgt. Marissa Escobedo as Chief Calderin-Serrano monitors her breathing for the Valkyrie whole blood transfusion program in San Bruno, CA on Jan. 10, 2024. The Valkyrie Program is a course designed to teach attendees how and when to apply a whole blood transfusion to casualties in a combat environment. (Courtesy Photo)

U.S. Navy Hospital Corpsman Petty Officer 2nd Class Jacob Evans, 23D Marine Regiment, 4th Marine Division, Marine Forces Reserve, adjusts a pelvic binder on his patient Sgt. Agustin Michel-Valdez for the Valkyrie whole blood transfusion program in San Bruno, CA on Jan. 10, 2024. The Valkyrie Program is a course designed to teach attendees how and when to apply a whole blood transfusion to casualties in a combat environment. (Courtesy Photo)

U.S. Navy Hospital Corpsman Chief Petty Officer Julio Calderin-Serrano, 23D Marine Regiment, 4th Marine Division, Marine Forces Reserve, gains IV access to his patient, Sgt. Timothy Pham, before beginning blood transfusion for the Valkyrie program in San Bruno, CA on Jan. 10, 2024. The Valkyrie Program is a course designed to teach attendees how and when to apply a whole blood transfusion to casualties in a combat environment. (Courtesy Photo)

U.S. Navy Hospital Corpsman Petty Officer 2nd Class Jacob Evans, 23D Marine Regiment, 4th Marine Division, Marine Forces Reserve, adjusts a pelvic binder on his patient Sgt. Agustin Michel-Valdez for the Valkyrie whole blood transfusion program in San Bruno, CA on Jan. 10, 2024. The Valkyrie Program is a course designed to teach attendees how and when to apply a whole blood transfusion to casualties in a combat environment. (Courtesy Photo)

U.S. Marines with 2nd Battalion, 23d Marine Regiment, 4th Marine Division, Marine Forces Reserve conduct Mountain Training Exercise 4-23 at Marine Corps Mountain Warfare Training Center, Bridgeport, California, June 25, 2023. Marines participate in MTX to focus on mission essential tasks such as assault climbing, animal packing and small unit movements, to strengthen expeditionary high-altitude warfare tactics in a mountainous environment. MTX trains elements of the Marine Air-Ground Task Force across the warfighting functions in preparation for operations in mountainous environments, enhancing 2/23’s readiness and lethality. (U.S Marine Corps video by Cpl. Jonathan L. Gonzalez) The Music within the following video production is copyright material used under license with HookSounds contract dated 1 Dec. 2023.

U.S. Marine Corps Cpl. Hunter Greenlaw, a rifleman with Bravo Company, 1st Battalion, 23rd Marine Regiment, attempts to breach through barbed wire during a demolition scenario for a Mission Rehearsal Exercise at Joint Reserve Training Center, Fort Polk, Louisiana, April 21, 2023. The MRX is a collective training event with Marine Air Ground Task Force integration to evaluate the Marines’ individual and cooperative capabilities in order to ensure their level of readiness for the upcoming Integrated Training Exercise 4-23, the largest Marine Corps Reserve exercise of the year. (U.S. Marine Corps photo by Cpl. Jennifer Delacruz)

U.S. Marine Corps Lance Cpl. Mitchell Turner, a rifleman with Bravo Company, 1st Battalion, 23rd Marine Regiment, applies a tourniquet during Tactical Combat Casualty Care training for a Mission Rehearsal Exercise at Fort Polk, Louisiana, April 21, 2023. The MRX is a collective training event with Marine Air Ground Task Force integration to evaluate the Marines’ individual and cooperative capabilities in order to ensure their level of readiness for the upcoming Integrated Training Exercise 4-23, the largest Marine Corps Reserve exercise of the year. (U.S. Marine Corps photo by Cpl. Jennifer Delacruz)